The fortress that shelled its own city

The garrison that fired on London and paid for it

A nine-day siege ended with the Tower's commander hacked apart within sight of where you are standing.
Last reviewed 12 September 2026 · A three-minute read · 41 BC–1974
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The short answer

Waterloo Block, at the Tower of London, sits near ground where Lord Scales's garrison fired cannon into the city in 1460 before being besieged into surrender; Scales himself was killed by a crowd while trying to flee. Nearby, Tower Green later saw the executions of Anne Boleyn, Catherine Howard and Lady Jane Grey.

Digital copy of print taken 1993. Complete indexed photo collection at WorldHistoryPics.com.
Digital copy of print taken 1993. Complete indexed photo collection at WorldHistoryPics.com. — 1993 · Gary Todd from Xinzheng, China · CC0
June 1460

A garrison fires cannon into London's own streets

Cannon fire came out of the Tower and into the city that surrounded it. This was June 1460, and the Tower of London was held for the Lancastrian king, Henry VI, by a nobleman named Lord Scales. London itself had turned against the king. A group of Yorkist lords, who had failed in an earlier rebellion and fled abroad, landed at Sandwich and marched on the capital with growing crowds behind them. When they reached London on 2 July, the city let them in.

Scales would not yield the fortress. His garrison began firing indiscriminately into the streets around the walls, cannon and wildfire landing among houses and passersby who had no part in the quarrel. People died in their own streets. It was a siege weapon turned on a city, not an enemy army, and Londoners did not forget it.

The garrison fired into the streets around it, and the city never forgave the man who gave the order.
July 1460

Hunger breaks a siege and a crowd kills its commander

Most of the Yorkist army marched north to face the king directly. The Earl of Salisbury stayed behind with 2,000 men and orders to take the Tower. He had help from London's own aldermen and armed militia, who dragged bombards out of a royal store and used them to smash a hole in the curtain wall. The blockade closed tight. No food came in and no one left.

On 10 July, word reached the siege lines that the Yorkists had won at Northampton and taken King Henry prisoner. The garrison inside the Tower held out a little longer, cut off and running out of everything, until 19 July, when hunger finally broke them and they surrendered.

Scales tried to get out ahead of what was coming. He put on a disguise and slipped onto the river by boat, aiming to escape downstream before anyone recognized him. A crowd near the bank spotted him anyway. They dragged him out and killed him where they caught him, within a short walk of the walls he had just surrendered. The man who ordered cannon fired into London's streets did not leave the city alive.

1536 to 1554

Three queens die within a hundred feet of the gates

Three queens died within a hundred feet of the Tower's gates, and the fortress that once fired outward turned its power inward on them. On Tower Green, Anne Boleyn was beheaded in 1536, accused of adultery and treason against Henry VIII. Catherine Howard followed in 1542, condemned on similar charges. Lady Jane Grey, queen for nine days, was executed here in 1554 after a failed bid to keep the crown from Mary I. All three were buried at the Church of St Peter ad Vincula, the chapel that still stands beside the green. Queen Victoria later had granite paving laid to mark where she believed the block had stood, though the exact spot remains disputed.

The Tower's walls did not just keep enemies out. They kept the condemned in.
August 1941

A firing squad carries out the Tower's last execution

A German spy named Josef Jakobs was tied to a chair inside the Tower and shot by firing squad. It was August 1941, and Jakobs was the last person ever executed there. He had parachuted into England the year before as a Nazi agent and was caught almost immediately, his radio and forged papers found beside him. Nearly five centuries after Lord Scales was torn apart for turning the Tower's guns on London, the fortress was still the place where the state settled its most dangerous enemies, quietly and for good.

1326

A queen takes London while her husband flees the Tower

More than a century before Scales held these walls for a king, a queen took the city instead of the fortress. In 1326, Isabella of France moved against her own husband, Edward II, during the invasion that would end his reign. Edward abandoned the Tower and fled west. Isabella took London without a fight, because the city had already turned on him. Where Scales's garrison fired outward and lost, Isabella let the city do her work for her and won.

Medieval and after

Ruins near Coldharbour Gate answer for old sieges

Standing near the Coldharbour Gate, you are close to the innermost gate of the fortress, the gate that guarded the White Tower itself. Its ruins are what is left after centuries of sieges, rebuilding, and reinforcement, each generation answering for what had happened at the walls before.

The walls still stand where Scales's cannon once fired, and where the crowd once caught up with him.

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Where this is

51.507°N 0.071°W TILE ≈ 1.2 × 0.6 KM
Place
Waterloo Block
Town
London
Country
United Kingdom
Tile
≈1.2 × 0.6 km (geohash6)
Standing here
Waterloo Block
Last reviewed
12 September 2026

The layers, in order

Sourced records, high and medium confidence. Era background is marked as such.
Ancient
Greater London, near Tower Hill
Radiocarbon samples recovered a few hundred yards west, cross-referenced by the p3k14c project, date to spans between 41 BC and roughly AD 1000, marking continuous activity on this ground long before the Tower was built.
OpenContext / p3k14c · record, medium
Tower Hill, near the Underground station
A stretch of the Roman-built London Wall survives at Tower Hill, first raised by the Romans around AD 200 to defend Londinium.
Wikipedia: London Wall · record, high
Medieval
Inner Ward, Tower of London
Archaeologists have found evidence that plague victims were buried hastily far below the Tower's Inner Ward grounds.
National Geographic · record, medium
Tower Green
Tower Green served as a burial ground in the Middle Ages, and 19th-century regrading turned up the remains of buildings once standing there.
Wikipedia: Tower Green · record, medium
White Tower
William the Conqueror built the White Tower in the early 1080s as the castle's strongest point, later whitewashed on Henry III's orders in 1240.
Tower of London area
In 1326 Isabella of France took the City of London after her husband Edward II abandoned the Tower and fled west.
Tower of London
Yorkist forces besieged the Tower of London in 1460, part of the fighting between the houses of Lancaster and York.
Early modern
Tower Green, Inner Ward
Anne Boleyn was beheaded on Tower Green in 1536, one of at least seven nobles executed on this patch of ground rather than in public.
Historic Royal Palaces · record, high
Tower Green, Inner Ward
Catherine Howard was beheaded here in 1542, then buried at the Chapel Royal of St Peter ad Vincula fifty yards away.
Historic Royal Palaces · record, high
Tower Green, Inner Ward
Lady Jane Grey was executed on Tower Green in 1554 after a nine-day reign, and lies buried in the chapel beside it.
Wikipedia: Tower Green · record, high
Tower of London, as depicted
Marcus Gheeraerts the Elder's 'A Fête at Bermondsey', painted around 1571, shows the Tower of London in the background of a riverside festival.
Wikidata · record, medium
Tower Hill
A man was found guilty of manslaughter at the Old Bailey in 1677 after killing his companion near Tower Hill in a quarrel over an alehouse reckoning.
Old Bailey Proceedings · record, high
Tower Hill
Peter Crown was tried at the Old Bailey in 1683 for killing John Hilton on Tower Hill after Hilton called him a coward for having sat the wooden horse.
Old Bailey Proceedings · record, high
Modern
Trinity Square Gardens, Tower Hill
The Tower Hill Memorial, kept by the Commonwealth War Graves Commission, names merchant seamen and fishermen lost in both World Wars who have no grave but the sea.
Tower of London
Josef Jakobs, a German spy, was executed by firing squad here in August 1941, the final person put to death at the Tower.
History.com · record, high
White Tower
An IRA bomb exploded in the White Tower on 17 July 1974, killing Dorothy Household and injuring 41 people, many of them children.

Questions about this place

Answered in one sentence, then in full above
What happened at Waterloo Block during the 1460 siege?
Lord Scales, holding the Tower for Henry VI, ordered his garrison to fire cannon and wildfire indiscriminately into the surrounding streets of London, killing bystanders who had no part in the conflict. The Earl of Salisbury and London's militia then besieged the fortress until hunger forced its surrender on 19 July 1460.
What was here before the Tower of London was built?
Radiocarbon-dated material recovered a few hundred yards west spans from 41 BC to roughly AD 1000, showing continuous activity on this ground long before the White Tower was raised by William the Conqueror in the early 1080s.
Who was executed on Tower Green near Waterloo Block?
Anne Boleyn was beheaded there in 1536, Catherine Howard in 1542, and Lady Jane Grey in 1554 after her nine-day reign. All three were buried at the nearby Chapel Royal of St Peter ad Vincula.
What happened to Lord Scales after the siege ended?
Lord Scales disguised himself and tried to escape London by boat down the river, but a crowd recognised him near the bank, dragged him out, and killed him within a short walk of the walls he had just surrendered.
Who was the last person executed at the Tower of London?
Josef Jakobs, a German spy who had parachuted into England and was quickly caught, was executed by firing squad inside the Tower in August 1941, the final execution carried out there.
What happened in 1326 near the Tower?
Isabella of France moved against her husband, Edward II, during her invasion; Edward abandoned the Tower and fled west, and Isabella took London without a fight because the city had already turned against him.

Where this came from

1
Historic Royal Palaces — Anne Boleyn beheaded a few steps from where you stand
2
Historic Royal Palaces — Catherine Howard executed on the same green
3
Wikipedia: Tower Green — Lady Jane Grey, the nine-days' queen, beheaded here
4
History.com — A German spy shot by firing squad, the Tower's last execution
5
National Geographic — Plague dead buried deep beneath the Inner Ward
6
Wikipedia: 1974 Tower of London bombing — A bomb inside the White Tower killed one visitor in 1974
7
Wikipedia: Siege of the Tower of London (1460) — A 1460 siege of the Tower during the Wars of the Roses
8
Wikipedia: London uprising — Isabella of France seized London while the king fled the Tower
9
Wikipedia: White Tower (Tower of London) — The White Tower, built by William the Conqueror
10
Old Bailey Proceedings — A killing on Tower Hill over a drinking bill, 1677
11
Old Bailey Proceedings — Peter Crown tried for killing John Hilton on Tower Hill, 1683
12
Wikidata — A 1571 painting shows the Tower across the river
13
OpenContext / p3k14c — Radiocarbon-dated material from the Roman and early medieval centuries nearby
14
Wikipedia: London Wall — The Roman city wall runs a few streets north
15
Wikipedia: Tower Hill Memorial — Merchant seamen with no grave but the sea, remembered nearby

Dug nearby

A Norman castle turned museum
St John the Evangelist, London
0 m
A lock between two basins
London
0 m
The garrison that shelled its own city
White Tower, London
0 m
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